title: The inverse problem.
authors.affiliation: Department of Radiation Therapy, Massachuetts General Hospital, Boston 02114.
authors.forename: M
authors.initials: M
authors.lastname: Goitein
mesh_terms: D006801:Humans; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D011881:Radiotherapy, Computer-Assisted